The effectiveness of C.B.T. is in decline.
Cognitive Behavioural Therapy (CBT) has many advantages for treating depression. Among them, the fact that it's easy to standardise, it's intuitive and it can deliver results relatively quickly (think weeks, not years as some other therapies demand). For many people with depression, it's also far more acceptable than the prospect of taking mind-altering drugs. But now the bad news: CBT's efficacy seems to be declining. That's the suggestion of a new meta-analysis that's looked at outcome data from 70 studies published between 1977 and 2014 and involving more than 2,426 people diagnosed with depression (uni polar depression, not bipolar). Across studies, 31 per cent of the participants were male; the average age of participants was 41. To allow comparison over time, Tom Johnsen and Oddgeir Friborg chose to focus only on studies that used the Beck Depression Inventory or the Hamilton Depression Rating Scale – two popular measures that involve the patient or ...